What's the difference between calefaction and incalescence?

Calefaction

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Definition:

• (n.) The act of warming or heating; the production of heat in a body by the action of fire, or by communication of heat from other bodies.
• (n.) The state of being heated.

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Incalescence

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Definition:

• (n.) The state of being incalescent, or of growing warm.

Example Sentences: